Maybe its just semantics but "bankers" aren't the enemy. Bankers as individuals are buying up bitcoin. The investment bankers that i know, they have all individually owned bitcoin at some point and some are holding. For more examples, you know that Stone Ridge actually bought bitcoin because the employees at the asset management firm won't stop buying it. JPM had to issue an advisory warning employees not to invest in bitcoin. Bankers are the people who see most of the shit going down at these places and some of them would prefer anything that brings a bit of method to the madness.
Banks as institutions though are now trying to wrap themselves around bitcoin, cryptocurrencies and the funding methods involved so that they can keep themselves relevant. They make money by siloing access to information, products and opportunities while taking the most profit out of it by funding the so called MNCs. Today as an individual, if a malaysian wants to sell something that a german will buy at a premium, they won't allow the exchange and let the poor guy gain from it. The silos are useful to them to keep a check on everything from world politics to demography. That is way too much power for someone to give away voluntarily. This is what bitcoin has challenged by enabling the common man to be part of a world economy without having to go through the hoops that they have placed for us. This is also one of the most important reasons that we must keep our privacy when it comes to all the KYC drama.